<template>
    <!-- 头部 -->
    <header class="header">
        <!-- 头部的第一行 -->
        <div class="top">
            <div class="container">
                <div class="loginList">
                    <p>尚品汇欢迎您！</p>
                   <!--  <p v-if="JSON.stringify(loginUser) == '{}'"> -->
                    <p v-if="!loginUser || !loginUser.username">
                        <span>请</span>
                        <router-link to="/login">登录</router-link>
                        <!-- @click="$router.push('/register')" -->
                        <router-link class="register" to="/register">免费注册</router-link>
                    </p>
                    <p v-else>
                        <span style="color: yellowgreen;font-weight: 900;">{{loginUser.username}}</span>
                        <!-- @click="$router.push('/register')" -->
                        <a href="javascript:void(0)" class="register" @click="loginOut">退出登录</a>
                    </p>

                </div>
                <div class="typeList">
                    <router-link to="/ordercenter/myorder">我的订单</router-link>
                    <router-link to="/shopcart">我的购物车</router-link>
                    <a href="###">我的尚品汇</a>
                    <a href="###">尚品汇会员</a>
                    <a href="###">企业采购</a>
                    <a href="###">关注尚品汇</a>
                    <a href="###">合作招商</a>
                    <a href="###">商家后台</a>
                </div>
            </div>
        </div>
        <!--头部第二行 搜索区域-->
        <div class="bottom">
            <h1 class="logoArea">
                <routerLink to="/home" class="logo" title="尚品汇">
                    <img src="./images/logo.png" alt="" />
                </routerLink>
            </h1>
            <div class="searchArea">
                <form action="###" class="searchForm">
                    <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model="inpValue" />
                    <!-- 编程式导航 -->
                    <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">
                        搜索
                    </button>
                </form>
            </div>
        </div>
    </header>
</template>

<script>
import { mapActions, mapState } from 'vuex';

export default {
    name: 'headerIndex',
    data() {
        return {
            inpValue: '',
        }
    },
    computed:{
        ...mapState('userList',['loginUser'])
    },
    methods: {
        ...mapActions('homeSearch', ['setSearchList']),
        //搜索按钮的回调函数：声明式导航跳转到搜索页
        goSearch() {
            const keyword = this.inpValue.trim()
          
            // 如果输入为空，阻止跳转
            if (!keyword) return

            // 如果当前路由已经是同样的搜索关键词，就不跳转
            if (
                this.$route.name === 'search' &&
                this.$route.params.keyword === keyword
            )
                return

            //根据this.$route.query里面是否有query判断 是否传过来了参数
            if (this.$route.query) {
                this.$router.push({
                    name: 'search',
                    params: { keyword }, // params 形式传参
                    //实现把从TypeNav传递过来的query参数（ ?categoryName=服饰内衣&category1Id=5）拼接到url地址栏后面
                    //可以成功params和query同时存在合并了一下
                    query: this.$route.query,
                })
            }
            //传入keyword和query
            this.setSearchList({
                keyword,
                ...this.$route.query
            })
        },
        //退出登录
        loginOut(){
            //调用仓库里面的方法
            this.$store.commit('userList/clearLoginUser')
        }
    },
    mounted() {
        //接收兄弟组件SearchIndex.vue发过来清除输入框值的信息，执行
        this.$bus.$on('clear', () => {
            this.inpValue = ''
        })
    },
}
</script>
<style lang="less" scoped>
.header {
    &>.top {
        background-color: #eaeaea;
        height: 30px;
        line-height: 30px;

        .container {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .loginList {
                float: left;

                p {
                    float: left;
                    margin-right: 10px;

                    .register {
                        border-left: 1px solid #b3aeae;
                        padding: 0 5px;
                        margin-left: 5px;
                    }
                }
            }

            .typeList {
                float: right;

                a {
                    padding: 0 10px;

                    &+a {
                        border-left: 1px solid #b3aeae;
                    }
                }
            }
        }
    }

    &>.bottom {
        width: 1200px;
        margin: 0 auto;
        overflow: hidden;

        .logoArea {
            float: left;

            .logo {
                img {
                    width: 175px;
                    margin: 25px 45px;
                }
            }
        }

        .searchArea {
            float: right;
            margin-top: 35px;

            .searchForm {
                overflow: hidden;

                input {
                    box-sizing: border-box;
                    width: 490px;
                    height: 32px;
                    padding: 0px 4px;
                    border: 2px solid #ea4a36;
                    float: left;

                    &:focus {
                        outline: none;
                    }
                }

                button {
                    height: 32px;
                    width: 68px;
                    background-color: #ea4a36;
                    border: none;
                    color: #fff;
                    float: left;
                    cursor: pointer;

                    &:focus {
                        outline: none;
                    }
                }
            }
        }
    }
}
</style>
